DE582263C - Process for dyeing acetate silk - Google Patents

Description

Process for dyeing acetate silk It has been found that clear, very real and strong dyeings on acetate silk are obtained if you use the Acetate silk amino-I - 9-anthrapyrimidines or their derivatives are used. One colors the dyes mentioned in the usual manner, for. B. in the presence of dispersants, in acidic, neutral or alkaline baths. Draw the colors available in this way They are distinguished by the particular vividness of the hue and generally fluoresce. It is also particularly valuable that a number of these products, e.g. B. the 4-amino-I ₧ 9-anthrapyrimidines, deliver greenish yellow tones, like those with anthraquinone derivatives or anthrapyrimidone or anthrapyridone derivatives have not yet been achieved. Beispie1 I 30 parts of acetate silk are in a suspension of 0.3 parts of 4-amino-I 9-anthrapyrimidine in 100 parts of water and with the addition of about 3 parts of Marseilles Soap colored for hours at 65 to 70 ° C. Then it is rinsed and washed and dried in the usual way. The greenish yellow coloration obtainable in this way shows strong green fluorescence and has excellent fastness properties.

Instead of 4-amino-I ₧ 9-anthrapyrimidine you can also use 4-methylamino-I ₧ 9-anthrapyrimidine or that of 4-amino-I ₧ 9-anthrapyrimidine with Methyl alcohol in sulfuric acid available reaction product, also 4-amino-2-methoxy- 1-9-anthrapyrimidine, 4-amino-5-nitro-1-9-anthrapyrimidine, 5-γ-propanolamino-I ₧ Use 9-anthrapyrimidine, 4-amino-2-methyl-I - 9-anthrapyrimidine for staining.

Example e Io parts of acetate silk are in a suspension of o, I parts of 5-amino-1-9-anthrapyrimidine in 300 parts of water and with the addition of Dyed about 1 part of soap for ½ to ¾ hours at 6o to 70 ° C. One moves on as indicated in Example I and is given a red coloration of very good fastness.

If the 5-methylamino derivative is used instead of 5-aminoi - 9-anthrapyrimidine, this gives a red-violet coloration.

The Py-C-chloro-4-amino-i-9-anthrapyrimidine yields on acetate silk a pure greenish yellow.

Example 3 The table below shows a number of other aminoanthrapyrimidines suitable for dyeing acetate silk, as well as the colorations achieved with them: Aminoanthrapyrimidine derivative staining on acetate silk 8-Amino-I ₧ 9-anthrapyrimidine ........ .................. red 7-Amino-I ₧ 9-anthrapyrimidine ........................... orange-red 6-Amino-I ₧ 9-anthrapyrimidine ........................... orange-red 4-Amino-Py-C-methyl-I ₧ 9-anthrapyrimidine. . . . . . . . . . . . ... green-yellow with green fluorescence 4-Amino-2-methyl-I ₧ 9-anthrapyrimidine. . . . . . . . . . . . ....... yellow 4-Amino-Py-C-methylamino-I ₧ 9-anthrapyrimidine. . . . . . . . . . salmon red with intense orange fluorescence 4-Amino-Py-C-amino-I ₧ 9-anthrapyrimidine. . . . . . . . . . . . . . . . yellow 4-Amino-Py-C-phenoxy-I ₧ 9-anthrapyrimidine. . . . . . . . . . . . . . yellow with green fluorescence By nitrating I ₧ 9-anthrapyrimidine and reducing it blue-red the resulting nitro compound obtained amino I ₧ 9-anthrapyrimidine 2-Amino-I ₧ 9-anthrapyrimidine ........................... orange. 3-Amino-I ₧ 9-anthrapyrimidine ........................... orange Py-C-amino-I ₧ 9-anthrapyrimidine ......................... yellow 4-Amino-Py-C-dimethylamino-I ₧ 9-anthrapyrimidine ........ pink with orange fluorescence Aminochlor-I ₧ 9-anthrapyrimidine (from the condensation clear red product of dichloro-I ₧ 9-anthrapyrimidine, manufactured by Chlorination of 5-chloro I ₧ 9-anthrapyrimidine in trichloro Benzene with chlorine in the presence of iodine, with p-toluene- sulfonic acid amide obtained by saponification) Aminochlor-I ₧ 9-anthrapyrimidine (shown from the orange 5-chloro-I ₧ 9-anthrapyrimidine obtainable by chlorination Dichloro-i # 9-anthrapyrimidine by heating with aqueous Ammonia)

Claims (1)

PATENT CLAIM: Process for dyeing acetate silk, characterized in that that one for dyeing the acetate silk amino-i # 9-anthrapyrimidines or their derivatives used.